We haven't discovered the Fountain of Youth yet, but a 100-year-old former Mr. Universe bodybuilder believes he's found the secret to living a long life.

Manohar Aich hit the big 1-0-0 last Sunday and credited his ability to remain happy during difficult circumstances as the reason he has lived a full century, explaining:

"I never allow any sort of tension to grip me. I had to struggle to earn money since my young days, but whatever the situation, I remained happy."

That probably does help in some ways, but the fact that he never smoked or touched alcohol has probably helped more, along with a healthy diet consisting of milk, fruits, vegetables, rice, lentils and fish.

Not to mention he's been in incredible shape since he started taking weight training seriously in 1942, which eventually led to a Mr. Universe title in 1952.

Whether or not his positive attitude or healthy lifestyle contributed to reaching the extraordinary milestone in his life, he's definitely set a positive example for others to consider following! Happy birthday, Manohar!